Shandong High Speed Maintenance Group Co., Ltd., Jinan 250061, China.
Shandong Technology Innovation Center of Carbon Neutrality, School of Thermal Engineering, Shandong Jianzhu University, Jinan 250013, China.
Molecules. 2022 Oct 29;27(21):7363. doi: 10.3390/molecules27217363.
A series of Mn/Ce-based bimetal-organic frameworks, recorded as MCDx (x = 1, 2, 4, 6), were prepared by a solvothermal synthesis method to explore their effects and performance in the synergistic catalysis of toluene under the irradiation of non-thermal plasma. The catalytic properties of different manganese loadings in MCDx for degradation of toluene were investigated. The microphysical structures of the material were analyzed by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The results showed that a MCDx coupling with non-thermal plasma can greatly improve the degradation efficiency, the energy efficiency and the CO selectivity, and could also significantly reduce the generation of O in the by-products. Among the test samples, MCD6 with Mn:Ce = 6:1 (molar ratio) showed the best catalytic performance and stability, exhibited toluene catalytic efficiency 95.2%, CO selectivity 84.2% and energy efficiency 5.99 g/kWh, and reduced O emission concentration 81.6%. This research provides a reference for the development and application of synergistic catalysis based on bimetal-organic frameworks and non-thermal plasma in the reduction of industrial volatile organic compounds.
一系列基于 Mn/Ce 的双金属有机骨架,记为 MCDx(x=1,2,4,6),通过溶剂热合成方法制备,以探索它们在非热等离子体照射下协同催化甲苯的作用和性能。研究了不同锰负载量的 MCDx 对甲苯降解的催化性能。通过粉末 X 射线衍射(PXRD)、扫描电子显微镜(SEM)、傅里叶变换红外光谱(FTIR)和热重分析(TGA)分析了材料的微物理结构。结果表明,MCDx 与非热等离子体的结合可以大大提高降解效率、能源效率和 CO 选择性,还可以显著减少副产物中 O 的生成。在测试样品中,Mn:Ce=6:1(摩尔比)的 MCD6 表现出最佳的催化性能和稳定性,表现出 95.2%的甲苯催化效率、84.2%的 CO 选择性和 5.99 g/kWh 的能源效率,以及降低 81.6%的 O 排放浓度。本研究为基于双金属有机骨架和非热等离子体协同催化工业挥发性有机化合物减排的开发和应用提供了参考。